Truck won't start
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Joined: Dec 2007
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Truck won't start
My friends 92 f150 won't start.He has changed the fuel filter .When he turns the key on the fuel pumps run but do not shut off.Same on both tanks.What could the problem be?It quit while driving but he was able to get it restarted and get it home but now it won't start.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
Originally Posted by moodyford
My friends 92 f150 won't start.He has changed the fuel filter .When he turns the key on the fuel pumps run but do not shut off.Same on both tanks.What could the problem be?It quit while driving but he was able to get it restarted and get it home but now it won't start.
this is a classic sign of a bad computer.
Posting Guru
Joined: Jun 2007
Posts: 1,394
Likes: 0
From: Des Plaines, Illinois
Agreed with QL.
The pumps should prime for 1 second and then shut off. When they don't, it very often means the computer is kaput.
Boneyard is the best place for a replacement. Make sure to get one from the same engine/trans combo, same year would also be nice.
The pumps should prime for 1 second and then shut off. When they don't, it very often means the computer is kaput.
Boneyard is the best place for a replacement. Make sure to get one from the same engine/trans combo, same year would also be nice.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
to remove computer:
disconnect batt
computer i located in engine compartment below and to the outside of brake master cyl.
unbolt the harness unbolt the comp.
unbolt the back of the plastic inner fender.
pull out computer.
go to junkyard.
reverse order.
drink massive amount of beer, you just saved your friend a ton of time and money.
good luck!
disconnect batt
computer i located in engine compartment below and to the outside of brake master cyl.
unbolt the harness unbolt the comp.
unbolt the back of the plastic inner fender.
pull out computer.
go to junkyard.
reverse order.
drink massive amount of beer, you just saved your friend a ton of time and money.
good luck!
